Home / 19,570.28-29,342.93-12,899.07

Finding the Fourth Proportional to 19,570.28, 29,342.93 and 12,899.07

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Solution

The fourth proportional to 19,570.28, 29,342.93 and 12,899.07 is: 19,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570.28 : 29,342.93 = 12,899.07 : x
  2. Step 2: Convert to fraction form
    19,570.28/29,342.93 = 12,899.07/x
  3. Step 3: Cross multiply
    19,570.28x = 29,342.93 × 12,899.07
  4. Step 4: Simplify right side
    19,570.28x = 378,496,443.58
  5. Step 5: Solve for x
    x = 378,496,443.58/19,570.28
  6. Step 6: Final answer
    x = 19,340.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.